Voodoo`s build (and a hell of a baseline)

Discussion in 'Mazdaspeed 3 Build Diaries' started by VoodooJef, Jan 18, 2017.

Watchers:
13 users.
  1. jsmith

    jsmith Gold Member

    Joined:
    Aug 12, 2016
    Posts:
    100
    Trophy Points:
    28
    Location:
    LA, CA
    Ratings:
    +65 / -0
    Is the IDC signal 0-5 V?
     
  2. VoodooJef

    VoodooJef Silver Member

    Joined:
    Dec 24, 2016
    Posts:
    281
    Trophy Points:
    63
    Location:
    DFW, Tx
    Ratings:
    +309 / -0
    TBH I don`t know. They are in fact PWM controlled so I bet they are, but someone else will have to confirm.
     
  3. Redline

    Redline I done fucked up for the last time. BANNED Greenie Member

    Joined:
    Feb 12, 2016
    Posts:
    2,706
    Trophy Points:
    113
    Location:
    Bannedville
    Ratings:
    +1,143 / -66
    The Aquamist HFS-4 for our cars is based on the DI IDC signal (part of the reason it's such an awesome system--it's injector-referenced). Maybe the info you're seeking is in their installation instructions. Just a thought...
     
  4. VoodooJef

    VoodooJef Silver Member

    Joined:
    Dec 24, 2016
    Posts:
    281
    Trophy Points:
    63
    Location:
    DFW, Tx
    Ratings:
    +309 / -0
    Interesting info to know, but for practicality reasons I have another solution. Just going to have the GA failsafe trigger a relay and cut power to the meth controller.
     
  5. Redline

    Redline I done fucked up for the last time. BANNED Greenie Member

    Joined:
    Feb 12, 2016
    Posts:
    2,706
    Trophy Points:
    113
    Location:
    Bannedville
    Ratings:
    +1,143 / -66
    I'm going to incorporate an AFR failsafe besides my GA. Have you thought about going that route? (Getting an AEM AFR failsafe, too?) I'm definitely going to have an AFR monitor since I'll be methanol fueling-dependent. I want a split-second intervention if I suddenly go lean under full boost, you know?

    So you basically methanol hydrolocked (those bent rod pics) and are trying to address too much methanol flow? I need to think about that too. Gotta address both too much or too little flow. Does VT have injector-cut rev limiting options instead of the AP spark-cut based rev limiting?
     
  6. VoodooJef

    VoodooJef Silver Member

    Joined:
    Dec 24, 2016
    Posts:
    281
    Trophy Points:
    63
    Location:
    DFW, Tx
    Ratings:
    +309 / -0
    Not so much hydrolock. More like an over exaggerated wotbox effect. A wotbox works by cutting spark between shifts so the cylinder is full of fuel and makes a bigger flame, forcing spool. When I hit the rev limiter the ECU cut spark and fuel, but methanol kept spraying as it was still in boost (albeit declining). When the spark came back on the cylinder was full of methanol and ignited an enormous flame front, going mega-spool.

    As far as VT, I`m only just getting more familiar with the nitty gritty of it but I do know I can set up the conditions under which it goes to fuel cut. There may well even be a way for it to dump WGDC if it goes lean, which would kick ass.
     
    • Like Like x 1
  7. Redline

    Redline I done fucked up for the last time. BANNED Greenie Member

    Joined:
    Feb 12, 2016
    Posts:
    2,706
    Trophy Points:
    113
    Location:
    Bannedville
    Ratings:
    +1,143 / -66
    Ahhhh, so there may have been both hydrolock and overboost going on. You wouldn't been able to see anything over ~30psi due to having a 3-Bar. Heck, you could've spiked much, much higher.
     
  8. Easter Bunny

    Easter Bunny Professional Engineer Greenie Member

    Joined:
    Feb 11, 2016
    Posts:
    393
    Trophy Points:
    93
    Location:
    Earth
    Ratings:
    +592 / -1
    He isnt spraying nearly enough meth for hydrolock
     
    Easter Bunny, via a HTC device, Jul 10, 2017
  9. VoodooJef

    VoodooJef Silver Member

    Joined:
    Dec 24, 2016
    Posts:
    281
    Trophy Points:
    63
    Location:
    DFW, Tx
    Ratings:
    +309 / -0
    20gph is a lot, but not enough to hydrolock a running motor.
     
  10. Redline

    Redline I done fucked up for the last time. BANNED Greenie Member

    Joined:
    Feb 12, 2016
    Posts:
    2,706
    Trophy Points:
    113
    Location:
    Bannedville
    Ratings:
    +1,143 / -66
    Good to know. Must've been just overboost that made rod 1 turn into a contortionist.
    I'm going to spray ~24-28GPH, so was pondering the possibility of hydrolock.
     
  11. VoodooJef

    VoodooJef Silver Member

    Joined:
    Dec 24, 2016
    Posts:
    281
    Trophy Points:
    63
    Location:
    DFW, Tx
    Ratings:
    +309 / -0
    Nothing particularly new to report. Opted to have some head work done just to ensure the engine is in the best possible shape it can be when it goes back together. The shop doing some of the machine work actually specializes in NASCAR engines, and if they can build a motor that is designed to run at 8-10K rpm for hours on end I`m pretty sure they can do a fine job on mine.
     
    • Like Like x 1
  12. Flyhigh

    Flyhigh Silver Member

    Joined:
    Mar 10, 2017
    Posts:
    91
    Trophy Points:
    18
    Location:
    Stuart Florida
    Ratings:
    +33 / -0
    After the recent events, let's hope so.
     
  13. Maisonvi

    Maisonvi Silver Member

    Joined:
    Feb 10, 2016
    Posts:
    913
    Trophy Points:
    93
    Location:
    South Haven, MI
    Ratings:
    +1,095 / -0
    Let's get it on the road man! Gonna be done in time for your trip?

    Sent from my SM-G900V using Tapatalk
     
    Maisonvi, via a mobile device, Jul 14, 2017
    • Like Like x 1
  14. VoodooJef

    VoodooJef Silver Member

    Joined:
    Dec 24, 2016
    Posts:
    281
    Trophy Points:
    63
    Location:
    DFW, Tx
    Ratings:
    +309 / -0
    No, but yes. I would have left day after tomorrow, so no. But I can reschedule the trip so yes.
     
    VoodooJef, via a mobile device, Jul 14, 2017
    • Like Like x 1
  15. Maisonvi

    Maisonvi Silver Member

    Joined:
    Feb 10, 2016
    Posts:
    913
    Trophy Points:
    93
    Location:
    South Haven, MI
    Ratings:
    +1,095 / -0
    What's the ETA then on getting the car back? They going to tune it possibly still?

    Sent from my SM-G900V using Tapatalk
     
    Maisonvi, via a mobile device, Jul 14, 2017
  16. VoodooJef

    VoodooJef Silver Member

    Joined:
    Dec 24, 2016
    Posts:
    281
    Trophy Points:
    63
    Location:
    DFW, Tx
    Ratings:
    +309 / -0
    Middle /end of next week as long as the head makes it back from the machine shop. It's done, they just pick up work in batches (which I understand despite it hold up my build). After running the last logs and getting the dyno estimate it gave I don't think I'm going to have them tune it. They will be doing the dyno break in so it's ready to rock but we're just going to convert the previous map to VT for the new motor and dial it in from there. If the 460/420 numbers are close I'll be really happy.
     
    VoodooJef, via a mobile device, Jul 14, 2017
  17. Chpspd

    Chpspd Gold Member

    Joined:
    Jan 28, 2017
    Posts:
    246
    Trophy Points:
    43
    Location:
    DFW
    Ratings:
    +186 / -4
    How much was their dyno estimate? Btw, freek does dyno tuning just have to schedule it.

    Sent from my SM-G360T using Tapatalk
     
    Chpspd, via a mobile device, Jul 17, 2017
  18. VoodooJef

    VoodooJef Silver Member

    Joined:
    Dec 24, 2016
    Posts:
    281
    Trophy Points:
    63
    Location:
    DFW, Tx
    Ratings:
    +309 / -0
    Got some good news today. Not so much my car, but about the shop in general. I just learned another local I know had his engine built at the same shop. They did basically the same job on his, did the dyno break in, then dyno tuned it and told him to have at it when he picked it up and he hasn`t had a problem since. Granted I`m not having them tune it, but they are doing the dyno break in so it`ll be ready for tuning when I get it back. To me, that was a load off my shoulders.
    --- Double Post Merged, Jul 20, 2017 ---
    The dyno break in is $200 and takes about 4 hours. Full dyno tune is $400 and up, depending on the details.
     
    • Like Like x 3
  19. VoodooJef

    VoodooJef Silver Member

    Joined:
    Dec 24, 2016
    Posts:
    281
    Trophy Points:
    63
    Location:
    DFW, Tx
    Ratings:
    +309 / -0
    So after a miscommunication from the machine shop it looks like she might be ready this coming saturday. Middle of next week at the latest.
     
    • Like Like x 4
Loading...

Share This Page

Users Viewing Thread (Users: 0, Guests: 0)